FACTBOX: Key provisions of energy bill passed by US House

(Reuters) - The U.S. House of Representatives on Tuesday passed a broad energy bill that will boost automobile fuel efficiency standards and require more use of renewable fuels like ethanol.

Following is a summary of some key items of the Energy Independence and Security Act, already passed by the Senate, which President George W. Bush is expected to sign into law this week:

Vehicle Fuel Economy:

* Increases Corporate Average Fuel Economy, or CAFE, standards to 35 miles per gallon (15 km per liter) by 2020 -- the first congressional increase in 32 years.

* Sets separate standards for cars and light trucks.

* Beginning in 2011 model year, National Highway Traffic Safety Administration annually increases nationwide CAFE standard. For 2021-2030 model years, car and light truck standards rise at a "maximum feasible rate" set by NHTSA.

* Automakers can trade fuel economy credits earned between the passenger car and light truck fleets when they exceed goals, and borrow against future gains for up to 3 years.

* Could lower U.S. crude oil usage by 2 million barrels per day -- or 8 percent -- by 2030, according to government estimates.

* Increased vehicle fuel efficiency will save American families $700 to $1,000 a year at the pump.

Renewable Fuel Mandate:

* Expands mandate for U.S.-grown biofuels, such as ethanol, to 36 billion gallons in 2022, versus current levels near 6.5 billion gallons. Near-term usage requirement goes to 9 billion gallons in 2008 and 15.2 billion gallons in 2011.

* Caps ethanol supply from corn at 15 billion gallons; the rest must come from non-food "cellulosic" sources, such as switchgrass and wood chips.

* Bans companies from restricting installation of ethanol pumps as part of franchise agreements.

Efficiency and Research

* Increases the efficiency of buildings, homes, appliances, and lighting, reducing heat-trapping carbon dioxide emissions 75 percent.

* Building, appliance, and lighting efficiency will save consumers $400 billion through 2030.